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'2 Sheets-Sheet 1 (No Model.)

A. BOLZANO.

METHOD OF FIXING RAIL CHAIRS 0N TIMBER SLEEPERS.

Patented Mar. 12, 1889.

774E710; mam/Ma W 2 Sheets-Sheet 2.

(No Model.)

A. BOLZANO.

METHOD 0? FIXING RAIL CHAIRS ON TIMBER SLEEPERS.

No 399,483. Patented Mar. 12, 1889.

7 771 urea 714% 6 55am ers, (for whiclnl have obtained a patent in.

' for the rail.

UNITED STATES PATENT ()EEICE.

ANDRE BOLZANO, or AUGSBURG, BAVARIA, GERMANY.

METHOD OF FIXING RAIL-CHAIRS ON TIMBER SLEEPERS.

SPECIFICATION forming part of Letters Patent No. 399,483, dated March 12, 1889.

Application filed August 16, 1888. Serial No. 282,924. (No model.) Patented in Germany June 16, 1888, No. 45,741 in France July 27,1888, No. 192,010; in Belgium August 14,1888, No. 82,910 in England August 16, 1888,110. 11,827; in Sweden September 10, 1888.110. 1,692, and in Italy September so, 1888, XXII, 24,055, XLVIII, 34.

T0 aZZ whom it may concern.-

Be it known that I, ANDRE BoLZANo, a subject of the King of Bavaria, residing at Augsburg, in the Kingdom of Bavaria, German Empire, have invented new and useful Improvements in Fixing Rail-Chairs on Timber Sleep- Germany, dated .1 une 111;, 1888, No. 45,711; France, dated July 27, 1888, No. 192 010; Delgium, dated August 11,1888,l\'o. 82,910; Eng land, dated August 16, 1888, No. 11,827; Sweden, dated September 10, 1888, No. 1,692; Italy, Gen, Vol. XXII, No. 21,055, Att, Vol. XLYIU, No. 3-1, dated September 30, 1888,) of which the following is a specification.

This invention relates to a method for fixing chairs on sleepers in a durable and secure manner. This invention is illustrated in the accoinpanying drawings, in which Figure 1 is a cross-section of a rail fixed to a sleeper. Fig. 9 is a sectional plan view of Fig. 1. Fig. 3 is a side elevation of Fig.- 1. Figs. 5, l1, and 7 show details of the devices for attaching the rails.

Similar letters indicate corresponding parts. i

In the drawings, the letter CL indicates al long strong screw of suitable materialsuch l as wood and intended to remain constantly in its scat. These screws are loosened only when required and tightened from ti me to time.

The screw (1 serves to hold a fastening device The fastening device consists of 1 two parts having respectively a depression and a ridge or projection engaging one another. One part of the Fastening contrivance forms the binding-plate b,while the other part is a pressing-plate, (I.

The plate I) may be 1 made of wrought or cast iron or of malleable I cast-iron or cast-steel. The pressing-plate (7 maybe made of wrought-iron. The rear part of the binding-plate lyingnpon the sleeper is proxided with a longitudinal slot or hole, 0, allowing the adjustment of the plate for half the possible widening of the gage, so that by displacing the opposite plates the gage can be widened to the required extent. The press ing-plate (7. is secured by the screw (1. The plate cl serves at the same time for covering the slot of the binding-plate b, and is provided with a hole corresponding to the diameter of a wrought iron.

the screw. Owing to the depression and the ridge by which the two plates are held in proper relative position to one another a firm connection of the plates can be obtained.

From the position of the binding-plate it can be readily ascertained it there is any alteration of the gage and to what extent.

To exchange or move rails, it is onlynecessary to loosen the screws a. The plates b (Z are then suiiiciently turned, as, for example, through an arc of ninety degrees, (see the position of the plates indicated by broken lines at the right hand in Fig. 2,) the rail is moved or replaced by another one, and the plates are turned back into their former position and the screws are again tightened.

Figs. 1, 5, 6, and 7 show several arrangements for connecting the plates 1) and d with each other. The binding-plate can be made of any cast material and the pressing-plate of a correspondiugly-figured flat piece of iron. Fig. 7 of the drawings shows side views of two plates which. are rolled or stamped out of The depressions and ridges are made to run longitudinally along the plates b (I, so that when the parts are in the position shown in Fig. 1 the binding-plates I) can be readily slid toward or from the rail, so as to bring said binding-plate into proper position relative to the rail, while at the same time lateral displacement of the plates 1) (I with respect to one another is prevented.

\Vhat I claim as new, and desire to secure by Letters Patent, is

The con'ibinalion, with the pressing-plate (Z and the binding-plate ll, of the screw a, made to pass through the perforation in the pressing-plate and through the slot in the bindin g-platc, said pressing and binding plates being prox'ided with the engaging depressions and ridges running longitudinally along the connccting-ilaces of said plates, subslantiallv as herein shown and described.

In testimony whereof lhavc signed my name to this specification in the presence of two subscribing witnesses.

ANDRE BOLZANO.

\\' it nesses:

F. UYBO'TS, .1. (1 ATTESWINTER. 

